<?php

/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2019/8/22
 * Time: 12:40
 */
class 获取字符串中数字的正则表达式
{

}

$patterns = "/\d+/"; //第一种
//$patterns = "/\d/";   //第二种
$strs="left:0px;top:202px;width:90px;height:30px";
preg_match_all($patterns,$strs,$arr);
print_r($arr);

/***************运行结果*********************/
//第一种
/*Array
(
    [0] => Array
    (
        [0] => 0
            [1] => 202
            [2] => 90
            [3] => 30
        )
)*/
//第二种
/*Array
(
    [0] => Array
    (
        [0] => 0
            [1] => 2
            [2] => 0
            [3] => 2
            [4] => 9
            [5] => 0
            [6] => 3
            [7] => 0
        )
)*/